Championships in 1929, losing to Helen Wills in straight sets.
According to A.
Wallis Myers of The Daily Telegraph and the Daily Mail, Watson was ranked in the world top ten in 1926 and from 1928 through 1930, reaching a career high of World No.
2 in 1929.Watson won the women's doubles title at Wimbledon in 1928 and 1929 and at the US Championships in 1929, all with partner Peggy Saunders Michell.
Her other Grand Slam title was the women's doubles at the French Championships in 1928 with partner Eileen Bennett.
She was part of the British team that won the Wightman Cup against the United States in 1928 and 1930.